From 2974816dfc8c97d79a49dc69597e72114ed243e3 Mon Sep 17 00:00:00 2001
From: Lukas Eder <lukas.eder@gmail.com>
Date: Wed, 16 Nov 2022 17:01:27 +0100
Subject: [PATCH] [jOOQ/jOOQ#14236] DefaultDiagnosticsContext shouldn't call
 ResultSet::getMetaData on already closed ResultSet

---
 .../java/org/jooq/impl/DefaultDiagnosticsContext.java  | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/jOOQ/src/main/java/org/jooq/impl/DefaultDiagnosticsContext.java b/jOOQ/src/main/java/org/jooq/impl/DefaultDiagnosticsContext.java
index 8e1d345eed..ea214f5f86 100644
--- a/jOOQ/src/main/java/org/jooq/impl/DefaultDiagnosticsContext.java
+++ b/jOOQ/src/main/java/org/jooq/impl/DefaultDiagnosticsContext.java
@@ -197,11 +197,13 @@ final class DefaultDiagnosticsContext extends AbstractScope implements Diagnosti
 
         if (resultSet != null) {
             try {
-                ResultSetMetaData meta = resultSet.getMetaData();
+                if (!resultSet.isClosed()) {
+                    ResultSetMetaData meta = resultSet.getMetaData();
 
-                for (int i = 1; i <= meta.getColumnCount(); i++)
-                    if (fetched || resultSetWrapper.read.get(i - 1))
-                        result.add(meta.getColumnLabel(i));
+                    for (int i = 1; i <= meta.getColumnCount(); i++)
+                        if (fetched || resultSetWrapper.read.get(i - 1))
+                            result.add(meta.getColumnLabel(i));
+                }
             }
             catch (SQLException e) {
                 log.info(e);